LVM snapshots as a backup strategyYes, I understand that. RAID 1 is in place to protect from storage device failures, backing up to remote location - from the software corruption. I'm considering LVM snapshots as a tool for a REALLY fast restore when you don't know what the f happened and you need the system online now. Any other options, faster then restoring a domU from a LVM backup?

Jun11

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LVM snapshots as a backup strategyBut if it's changed (the snapshot), where does this "frozen" come from? Let's say I have this scenario, a working system somehow gets corrupted over time. I have a snapshot of it when it was working correctly. Will the snapshot be a representation of the system while it was still working correctly, or will it have the changes that made the original system corrupt in the first place? Hope I'm clear enough, just want to be sure I really understand it.

LVM snapshots as a backup strategyMaybe I don't understand how snapshots work. The manual says that a snapshot is an almost instant copy of the logical volume, avoiding the need to take the system that uses it offline. From your description it would seem that a snapshot is more of branch, replica, rather than a freezed copy. Does the snapshot get updated with all the changes made in the original system after it is made? If so, I need to take the data off of it immediatly and destroy the snapshot, because it's not intended as a storage mechanism for backups? Thanks!